Title
- Reductorium morale1
- Registre des marches passes pour la reconstruction et les restaurations1
- Regulations1
- Religious text1
- Religious texts1
- Risālah fī al-hayʼah1
- Risālah fī al-hayʼah al-falakīyah1
- Risālah fī al-ḥisāb1
- Risālah fī ʻilm al-hayʼah1
- Ritual1
- Rubaiyat1
- Rātib al-mahdī1
- Scale of perfection1
- Schedule of tariffs1
- Scientific texts1
- Scritture de signori Medici1
- Scritture dell'Arrigucci1
- Secretum Secretorum1
- Seder prayers1
- Sentencia contra el Almine1